[R] Help with histogram intervals

David Winsemius dwinsemius at comcast.net
Tue Jun 28 02:47:14 CEST 2011


On Jun 27, 2011, at 8:36 PM, Joshua Wiley wrote:

> Hi Ivo,
>
> It depends how you are making the histogram plot.  If you are using
> the traditional graphics hist() function,

And if you are using histogram() you should be looking at , ...  
surprise, surprise, ... the breaks argument.

> then look at the argument,
> "breaks" (type ?hist at the console to pull up the documentation
> explaining this).  For example:
>
> hist(x = sample(1:20, 300, TRUE), breaks = seq(0, 20, by = 2))
>
> HTH,
>
> Josh
>
> On Mon, Jun 27, 2011 at 4:23 PM,  <Gwanmesia at aol.com> wrote:
>> Dear Sir,
>>
>> How do I change the intervals on the x axis of a histogram plot;  
>> let us say
>>  for example the intervals were 0,5,10,15,and 20, and I wanted to  
>> change
>> the  intervals to 0,2,4,6,8,10,12,14,16,18,20.
>>
>> I look forward to receiving your words of wisdom.
>>
>> Ivo
>>
>>        [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
>
> -- 
> Joshua Wiley
> Ph.D. Student, Health Psychology
> University of California, Los Angeles
> http://www.joshuawiley.com/
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

David Winsemius, MD
West Hartford, CT



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